Buffer overflow in C-ares
CVE-2016-5180
Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing…
Vulnerability class: Buffer Overflow
EPSS: 0.086 (94.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- C-ares — versions 1.0.0, 1.1.0, 1.2.0
- C-ares_project C-ares — versions 1.11.0
- Nodejs Node.js
- Canonical Ubuntu_linux — versions 12.04, 14.04, 16.04
- Debian Debian_linux — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chrome-cve-admin@google.com (x_refsource_CONFIRM)
- chrome-cve-admin@google.com (vdb-entry, x_refsource_BID)
- chrome-cve-admin@google.com (x_refsource_UBUNTU, vendor-advisory)
- chrome-cve-admin@google.com (vendor-advisory, x_refsource_GENTOO)
- chrome-cve-admin@google.com (vendor-advisory, x_refsource_DEBIAN)
- chrome-cve-admin@google.com (x_refsource_CONFIRM)
- chrome-cve-admin@google.com (x_refsource_CONFIRM)
- chrome-cve-admin@google.com (x_refsource_CONFIRM)
- chrome-cve-admin@google.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2016-5180?
- CVE-2016-5180 is a critical-severity vulnerability in C-ares, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2016-10-03.
- How severe is CVE-2016-5180?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-5180 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.